To swap the coils? Yes it is very simple. It is 6 or so 10mm bolts along the pack, then unplug it from the back. The coils on an I6 are all part of one pack that runs across the passenger side of the engine. The PO of my I6 some how broke the pack and hot glued it back together. Wasnt throwing any codes or running rough when I bought it, but about 4 days later it was...I found that. New coil pack was about $80 IIRC.